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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad del Bío Bío
2017
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| Online Access: | https://www.redalyc.org/articulo.oa?id=48550384005 |
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Table of Contents:
- THE EFFECT OF NATURAL WEATHERING ON UNTREATED WOOD SURFACE Eliška Oberhofnerová Miloš Pánek Alba García-Cimarras Agrociencias Central Europe colour changes untreated wood surface roughness natural weathering As a result of contemporary ecological and sustainable movements, a number of constructions from wood, as the only renewable building material, is still increasing. In accordance with these trends, wood elements are often left untreated. The presented study is aimed to characterize and compare a surface degradation of untreated wood caused by weathering. Weathering characteristics of softwoods and hardwoods (spruce, pine, Douglas fir, larch, oak, black locust, maple, poplar and alder) during twelve months of exposure in the climatic conditions of Central Europe were determined. All the wood species were characterized by colour and gloss changes and increasing roughness. The lowest discoloration was observed for oak and the highest one for spruce wood, respectively. The lowest changes of roughness were observed for alder, the highest for spruce wood. The depth of colour changes was relatively similar among the softwoods. Regarding hardwoods, it varied more. The values of total colour changes had a significant correlation with the depth values of these colour changes. Maple, alder and poplar samples were characterized by the presence of mould and blue-stain fungi. Douglas fir wood was found to be the most liable for the formation of cracks. 2017 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48550384005 en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Num.2 Vol.19